<template>
  <div>
<!--    面包屑导航-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
<!--      搜索与增加区-->
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">增加用户</el-button>
        </el-col>
      </el-row>
<!--      用户列表区-->
      <el-table :data="userList" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"></el-table-column>
        <el-table-column prop="role_name" label="角色"></el-table-column>
        <el-table-column label="状态">
<!--          ???-->
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
<!--            修改-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
<!--            删除-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
<!--            分配角色-->
            <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

<!--      分页区域-->
      <el-pagination
              @size-change="handleSizeChange"
              @current-change="handleCurrentChange"
              :current-page="queryInfo.pagenum"
              :page-sizes="[1, 2, 5, 10]"
              :page-size="queryInfo.pagesize"
              layout="total, sizes, prev, pager, next, jumper"
              :total="total">
      </el-pagination>
    </el-card>
<!--增加用户的对话框-->
    <el-dialog
            title="增加用户"
            :visible.sync="addDialogVisible"
            width="50%"
            @close="addDialogClosed"
    >
<!--      添加用户的内容主题区域-->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
<!--      底部区域-->
      <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
    </el-dialog>

<!--修改编辑用户的对话框-->
    <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="50%"
            @close="editDialogClosed"
    >
<!--   修改用户的内容主题区域   -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
<!--   修改用户的底部区域-->
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUser">确 定</el-button>
  </span>
    </el-dialog>

<!--分配角色的对话框-->
    <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="50%"
    >
      <div>
        <p>当前的用户：{{userInfo.username}}</p>
        <p>当前的角色：{{userInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
                  v-for="item in rolesList"
                  :key="item.id"
                  :label="item.roleName"
                  :value="item.id">
          </el-option>
        </el-select></p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>


  </div>
</template>

<script>
  export default {
    name: "User",
    data(){
      //邮箱的校验规则
      var checkEmail = (rule,value,cb) =>{
        //验证邮箱的正则表达式
        const regEmail = /^\w+@[a-z0-9]+\.[a-z]{2,4}$/;

        if(regEmail.test(value)){
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
      }
      //电话的校验规则
      var checkMobile = (rule,value,cb) =>{
        //验证电话号的正则表达式
        const regMobile =  /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/;

        if(regMobile.test(value)){
          return cb()
        }
        cb(new Error('请输入合法的电话号'))
      }
      return{
      //  获取用户列表的参数对象
        queryInfo:{
          query:'',
          //当前的页数
          pagenum:1,
          //当前每页多少条数据
          pagesize:2
        },
        userList:[],
        total:0,
        addDialogVisible:false,
        editDialogVisible:false,
        //查询到的用户对象
        editForm:{

        },
        //添加用户表单数据
        addForm:{
          username:'',
          password:'',
          email:'',
          mobile:''
        },
        //添加表单的验证规则对象
        addFormRules:{
          username:[
            { required: true, message: '请输入用户', trigger: 'blur' },
            { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          password:[
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 16, message: '长度在 6 到 16 个字符', trigger: 'blur' }
          ],
          email:[
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator:checkEmail, trigger: 'blur' }
          ],
          mobile:[
            { required: true, message: '请输入电话', trigger: 'blur' },
            { validator:checkMobile, trigger: 'blur'}
          ]
        },
        //修改用户的验证规则对象
        editFormRules:{
          email:[
            { required: true, message: '请输入邮箱', trigger: 'blur' },
            { validator:checkEmail, trigger: 'blur' }
          ],
          mobile:[
            { required: true, message: '请输入电话', trigger: 'blur' },
            { validator:checkMobile, trigger: 'blur'}
          ]
        },
        setRoleDialogVisible:false,
        //需要分配角色的用户信息
        userInfo:{},
        //所有角色的数据列表
        rolesList:[],
        //表示已选中的角色id值
        selectedRoleId:''
      }
    },
    created() {
      //创建的时候会调用后面的函数
      this.getUserList()
    },
    methods:{
      //获得用户数据
      async  getUserList(){
        const {data:res} = await this.$http.get('users',{
          params:this.queryInfo
        })
        if(res.meta.status !== 200) return this.$message.error('获取用户列表失败')
        this.userList = res.data.users;
        this.total = res.data.total;
      },
      //监听pagesize 改变的事件
      handleSizeChange(newSize){
        console.log(newSize);
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      //监听 页码值 改变的事件
      handleCurrentChange(newPage){
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      //监听switch 开关状态的改变
      async userStateChanged(userinfo){
        const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        if(res.meta.status !== 200){
          userinfo.mg_state =! userinfo.mg_state
          return this.$message.error('更新用户状态失败!')
        }
        this.$message.success("更新用户状态完成！")
      },
      //监听添加用户对话框的关闭事件
      addDialogClosed(){
        this.$refs.addFormRef.resetFields()
      },
      //监听修改用户的对话框关闭事件
      editDialogClosed(){
        this.$refs.editFormRef.resetFields()
      },
      //点击按钮，增加新用户
      addUser(){
        this.$refs.addFormRef.validate(async valid => {
          console.log(valid);
          if(!valid) return
         const{data:res} = await this.$http.post('users',this.addForm)
          if(res.meta.status !== 201) return this.$message.error('添加用户失败了！！')
          this.$message.success('添加用户成功了！！')
          //隐藏添加用户的对话框
          this.addDialogVisible = false
          //重新获取用户的列表数据
          this.getUserList()
        })
      },
      //更新用户
      editUser(){
        this.$refs.editFormRef.validate(async valid => {
          console.log(valid);
          if(!valid) return
          const{data:res} = await this.$http.put('users/' + this.editForm.id ,{
            email:this.editForm.email,mobile:this.editForm.mobile
          })
          if(res.meta.status !== 200) return this.$message.error('修改用户失败了！！')
          this.$message.success('修改用户成功了！！')
          //隐藏修改用户的对话框
          this.editDialogVisible = false
          //重新获取用户的列表数据
          this.getUserList()
        })
      },
      //根据id删除用户
      async removeUserById(id){
      const confirmResult =  await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        //如何用户确认返回的是一个confirm
        //如何用户确认返回的是一个cancel
        if(confirmResult !=='confirm') {
          return this.$message.info("已取消删除！")
        }

       const {data:res} = await this.$http.delete("users/" + id)
        if(res.meta.status !== 200) return this.$message.error('删除用户失败')
        this.$message.success('删除用户成功')
        this.getUserList()
      },
      //展示编辑用户的对话框
      async showEditDialog(id){
        this.editDialogVisible = true
        const {data:res} = await this.$http.get('users/' + id)
        if(res.meta.status !== 200) return this.$message.error('查询用户信息失败！！')
        this.editForm = res.data
      },
      //分配角色的对话框
      async setRole(userInfo){
        this.userInfo = userInfo

        //在展示对话框之前，获取所有的角色列表
        const {data:res} = await this.$http.get('roles')
        if(res.meta.status !== 200) return this.$message.error('获取角色列表失败')
        this.rolesList = res.data
        this.setRoleDialogVisible = true
      },
      //点击按钮，分配角色
      async saveRoleInfo(){
        if(!this.selectedRoleId){
          return this.$message.error('请选择要分配的角色！！')
        }
       const {data:res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
          rid:this.selectedRoleId
        })
        if(res.meta.status !== 200) return this.$message.error('更新角色失败')
        this.$message.success('更新角色成功')
        this.getUserList()
        this.setRoleDialogVisible = false
      }
    }
  }
</script>

<style lang="less" scoped>

</style>